| 大量铜汞存在下银的阳极溶出伏安法测定 |
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| 引用本文： | 董文举 周漱萍. 大量铜汞存在下银的阳极溶出伏安法测定[J]. 河南师范大学学报(自然科学版), 1993, 21(4): 52-55 |
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| 作者姓名： | 董文举 周漱萍 |
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| 作者单位： | 河南师范大学化学系，河南师范大学化学系，河南师范大学化学系，河南师范大学化学系 453002，新乡，453002，新乡，453002，新乡 河南师范大学化学系毕业生，453002，新乡 河南师范大学化学系毕业生 |
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| 基金项目： | 河南省科委自然科学基金资助项目 |
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| 摘 要： | 本文提出了在氨三乙酸(NTA)——乙二胺四乙酸(EDTA)(NH_3)体系中进行银的阳极溶出伏安法测定,排除了数千倍的汞(Ⅱ)、铜(Ⅱ)的干扰,测定下限可达0.002μg·ml~(-1),变异系数≤8%,回收率在80%～117%之间。
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| 关 键 词： | 银 测定 阳极溶出伏安法 |
Determination of Silver In Thpresence of Large Amount of Copper and Mercury by Anodic Stripping Voltammetry |
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| Dong Wenju,Zhou Shuping,Dong Yuying,Wang Qiulian. Determination of Silver In Thpresence of Large Amount of Copper and Mercury by Anodic Stripping Voltammetry[J]. Journal of Henan Normal University(Natural Science), 1993, 21(4): 52-55 |
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| Authors: | Dong Wenju Zhou Shuping Dong Yuying Wang Qiulian |
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| Affiliation: | Dong Wenju,Zhou Shuping,Dong Yuying,Wang Qiulian Department of Chemisty Henan Normal University,453002,XinXiang |
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| Abstract: | In this paper,a new method of anodic stripping voltammetry for determination ofsilvsr was recommended.The interference of a large ammount of copper and mercury was eliminatsed in asupporting electrolyte containing NTA—EDTA—NH_3.The strippimg peak current is proprtional to theconcentration of silver in the range of 0.002～0.25μg/ml.The relative standard deviation of the method isless than 8%,and the recoveries for silver are between80% and 117%. |
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| Keywords: | siler determination anodic stripping voltammetry |
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